import { sys_login, logout, getInfo } from '@/api/user'
import { getToken, setToken, removeToken, setName } from '@/utils/auth'
import router, { resetRouter } from '@/router'
import Cookies from 'js-cookie'
import qs from 'qs'

const state = {
  token: getToken(),
  name: '',
  avatar: '',
  introduction: '',
  roles: []
}

const mutations = {
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  // SET_INTRODUCTION: (state, introduction) => {
  //   state.introduction = introduction
  // },
  SET_NAME: (state, name) => {
    state.name = name
  },
  // SET_AVATAR: (state, avatar) => {
  //   state.avatar = avatar
  // },
  SET_ROLES: (state, roles) => {
    state.roles = roles
  }, 
  SET_PERMISSIONS: (state, permissions) => {
    state.permissions = permissions
  },
}

const actions = {
  // user login
  login({ commit }, userInfo) {
    const { username, password } = userInfo 
    return new Promise((resolve, reject) => {
      sys_login(qs.stringify({ user_name: username.trim(), passwd: password })).then(response => {
        const data = response
        commit('SET_TOKEN', data.dataSingle.token)
        setToken(data.dataSingle.token) 
        setName(data.dataSingle.user_name)
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // get user info
  getInfo({ commit, state }) {
    return new Promise((resolve, reject) => {
      getInfo(state.token).then(response => {
        const data = response
        // console.log(data);
        if (!data) {
          reject('验证失败，请重新登录')
        }
        const role_menus = data.dataSingle.role_menu;
        const role_permissions = data.dataSingle.role_permissions;
        const role_menus_array = role_menus.split(',');
        const role_permissions_array = role_permissions.split(',');
        commit('SET_ROLES', role_menus_array);
        commit('SET_PERMISSIONS', role_permissions_array); 
        resolve({roles:role_menus_array})
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout
  logout({ commit, state, dispatch }) {
    return new Promise((resolve, reject) => {
      logout(state.token).then(() => {
        commit('SET_TOKEN', '')
        commit('SET_ROLES', [])
        removeToken()
        resetRouter()

        // reset visited views and cached views
        // to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2485
        dispatch('tagsView/delAllViews', null, { root: true })

        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // remove token
  resetToken({ commit }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      removeToken()
      resolve()
    })
  },

  // dynamically modify permissions
  changeRoles({ commit, dispatch }, role) {
    return new Promise(async resolve => {
      const token = role + '-token'

      commit('SET_TOKEN', token)
      setToken(token)

      const { roles } = await dispatch('getInfo')

      resetRouter()

      // generate accessible routes map based on roles
      const accessRoutes = await dispatch('permission/generateRoutes', roles, { root: true })

      // dynamically add accessible routes
      router.addRoutes(accessRoutes)

      // reset visited views and cached views
      dispatch('tagsView/delAllViews', null, { root: true })

      resolve()
    })
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}
